Yep, if you want to truly follow the regulatory restrictions on EIRP at both ends, receive gain at the AP is likely to be the limiting factor. Ideally the antenna gain should be the same at both AP and CPE when you are not allowed to use transmit antenna gain at the CPE end to increase EIRP. I guess it depends on whether you are willing to use a larger antenna or reflector dish at the CPE. Some WISPs will only use a bare CPE with internal antenna for aesthetic issues, we dish most everything.
From: Mathew Howard via Af Sent: Wednesday, October 15, 2014 10:36 AM To: [email protected] Subject: Re: [AFMUG] Rflelements announcement True, in that case, higher gain really isn't necessary, so that would be a good application for these. But in 5.8ghz, you can somewhat compensate for the lower gain with higher Tx power at the CPE... that isn't an option with DFS, which is my reasoning for higher gain being more important there. -------------------------------------------------------------------------------- From: Af [[email protected]] on behalf of Rory Conaway via Af [[email protected]] Sent: Wednesday, October 15, 2014 10:27 AM To: [email protected] Subject: Re: [AFMUG] Rflelements announcement Depends on the application. If you are in an urban area and your customers are within a mile, there will be little difference. With the dropoff, f/b, and no lobes, I’d take this over a standard dual-polarity sector. And since I install in residential areas with aesthetic issues, no shield kits. Rory From: Af [mailto:[email protected]] On Behalf Of Mathew Howard via Af Sent: Wednesday, October 15, 2014 8:24 AM To: [email protected] Subject: Re: [AFMUG] Rflelements announcement I would argue that higher gain is more important if you are using DFS frequencies... I can definitely see situations where these would make sense though, but I think the ones in the 30-60 degree range are probably more interesting than the 90. -------------------------------------------------------------------------------- From: Af [[email protected]] on behalf of Rory Conaway via Af [[email protected]] Sent: Wednesday, October 15, 2014 10:21 AM To: [email protected] Subject: Re: [AFMUG] Rflelements announcement I think the key thing here is the f/b ratio and the pattern. 10dB is fine if you are using DFS frequencies anyway. Rory From: Af [mailto:[email protected]] On Behalf Of Stefan Englhardt via Af Sent: Wednesday, October 15, 2014 8:08 AM To: [email protected] Subject: Re: [AFMUG] Rflelements announcement The pattern is not like a normal sector it opens wider at elevation. Von: Af [mailto:[email protected]] Im Auftrag von Gino Villarini via Af Gesendet: Mittwoch, 15. Oktober 2014 16:28 An: [email protected] Betreff: Re: [AFMUG] Rflelements announcement I thinkt he innovative thing here is the waveguide adapter between the radios ant the horns/dishes, 90deg sector has 10db gain.. Way too low I think Gino A. Villarini President Aeronet Wireless Broadband Corp. www.aeronetpr.com @aeronetpr From: "[email protected]" <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Wednesday, October 15, 2014 at 10:18 AM To: "[email protected]" <[email protected]> Subject: Re: [AFMUG] Rflelements announcement The simper Sectors http://simper.rfelements.com/ Not clear if the dish is a horn/reflector combination? ----- GENIAS INTERNET -- www.genias.net------ Stefan Englhardt Email: [email protected] Dr. Gesslerstr. 20 D-93051 Regensburg Tel: +49 941 942798-0 Fax: +49 941 942798-9 Von: Af [mailto:[email protected]] Im Auftrag von Chuck McCown via Af Gesendet: Mittwoch, 15. Oktober 2014 16:15 An: [email protected] Betreff: Re: [AFMUG] Rflelements announcement Which product are we talking about? The one that looks like a dish has a patch array inside the cover. From:Ty Featherling via Af Sent: Wednesday, October 15, 2014 8:06 AM To:[email protected] Subject: Re: [AFMUG] Rflelements announcement So you're saying this is more marketing than innovation? -Ty On Wed, Oct 15, 2014 at 9:04 AM, Chuck McCown via Af <[email protected]> wrote: Angle is pretty much solely dependent upon gain. So a typical horn is about as good as the best patch array or a smaller parabolic reflector. But they are worse than both in the mechanical sense. The higher the frequency the more practical horns become. From:Stefan Englhardt via Af Sent: Wednesday, October 15, 2014 1:51 AM To:[email protected] Subject: [AFMUG] Rflelements announcement This is realy something I did not expect: They announce Systems with Horn antennas. A quite different approach. Their sectors are directional antennas so coverage is not as good as with traditional antennas (Their marketing argues the opposite). But horn antennas should have very low sidelobes, a good FB-Ratio and allow small angles. So it should be possible to make a more dense deployment. What make me scare is the big opening where water and ice may cause damage.
